Robert Irwin stepped out of his comfort zone in order to promote animal conservation. The 21-year-old zookeeper posed shirtless for a Bonds underwear ad.

Robert Irwin is giving fans a peek at what’s usually unseen territory: The 21-year-old zookeeper is posing half ... some serious muscle in the new Bonds ads, which include him posing with ...

Aussie zookeeper and TV personality Robert Irwin has picked up a new job: underwear model, complete with Outback creatures. (Andy Kropa / Invision / Associated Press) ...